Odpowiedź:
[tex]30^{2} + 30^{2} = x^{2} \\900+ 900 = x^{2} \\x^{2} = 1800\\x = \sqrt{1800}\\x= 30\sqrt{2} \\EB = 30\sqrt{2} \\\\\\18^{2} + 18^{2} = y^{2} \\\\y^{2} = 324 + 324\\y = \sqrt{648} \\y = 2\sqrt{162} \\y = 6\sqrt{18} \\y = 18\sqrt{2} \\DB = 18\sqrt{2} \\\\30\sqrt{2} - 18\sqrt{2} = 12\sqrt{2}[/tex]
Szczegółowe wyjaśnienie:
